Divide.
÷ 
A. - 
B. 
C. 
D. - 
Answer: A
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Solve the problem.A power plant is located on a river that is 650 feet wide. To lay a new cable from the plant to a location in a city 1 mile downstream on the opposite side costs $225 per foot across the river and $150 per foot along the land. Suppose that the cable goes from the plant to a point Q on the opposite side that is x feet from the point P directly opposite the plant. Write a function C(x) that gives the cost of laying the cable in terms of the 
A. C(x) = 225
+ 150(1 - x)
B. C(x) = 225
+ 150(5280 - x)
C. C(x) = 225(650 - x) + 150(1 - x)
D. C(x) = 150
+ 225(5280 - x)
Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.x + 3y - 2z - w = 104x + y + z + 2w = 33-3x - y - 3z - 2w = -33 x - y - 3z -2w = -17
A. x = 3, y = 7, z = -2, w = 7 B. x = 4, y = 5, z = 2, w = 5 C. x = 10, y = 33, z = -33, w = -17 D. Inconsistent
Determine algebraically whether the graph is symmetric with respect to the x-axis, the y-axis, and the origin.11x = |y|
A. x-axis only B. Origin only C. x-axis, y-axis, origin D. y-axis only
Graph. Label any intercepts and determine the slope of the line. If the slope is undefined, state this.x = 6
A. x-intercept: (0, 6), m: 0
B. x-intercept: (0, 0), m: 6
C. x-intercept: (6, 0), m: undefined
D. x-intercept: (6, 0), m: 
